For the third time, you wished desperately that you hadn’t bought that stupid box at the antique shop. It had caught your eye, and you’d been unable to turn away. You just had to have it. How stupid you’d been.

There was some kind of interesting locking mechanism where you had to touch spots on the box in the right order. You hadn’t been able to figure it out. Despite that, the box had looked perfect on the entryway table. And then it had looked perfect on the dresser in the bedroom. Then it had looked perfect on your bedside table. And now it sat on the bed, finally opened and leaking a dark, ominous mist.

The creature that had entered your home when that box had opened was beautiful. She was a model of human perfection, twisted into monstrous perversion. You had never been interested in women, but something about her made your knees weak. You couldn’t be sure if it was from desire or abject terror.

You stood on one side of the bed while your boyfriend/husband stood on the other. He had been clothed a moment before, but now he stood naked. With a shock, you realized that you were naked too.

The creature slowly stalked up to the man that you loved and ran delicate taloned fingers in a curving line down his chest. She leaned in and whispered something to him, and he shook his head, a tear falling from one eye in his fear. And then she leaned back and tapped his forehead with a single talon.

His cock sprang to life, instantly becoming erect. It spasmed repeatedly, pumping cum onto the bedspread in thick spurts. The look on his face was unlike anything you’d ever seen. It was not his usual orgasm face, by any means. No, his eyes were alight with madness, his face crumpling into an expression of utter depravity. You were horrified by that expression.

But before he’d recovered, the creature was crooning in your ear, beautiful horns displacing some of your hair. She whispered to you, her voice sweet and innocent while what she said was evil incarnate. “I can give you pleasure unlike any you have ever felt. World-ending, life-altering pleasure. But if you’d like another taste, you must do something for me first.”

You felt her touch your forehead, and a rapid-fire barrage of images and thoughts assaulted you. Making your sister forfeit her soul to have you eat her out one more time. Helping your boyfriend/husband rape the girl next door. Breaking into your pastor’s house, tying them up, and forcing he and his wife to fuck their innocent daughter to get free. Spiking the punch at the local college chastity club with your corrupting cum and turning it into a wild orgy. Each one of these acts would earn another taste.

And the first taste ripped through you. Heat rushed into every limb, but it was most intense where it raced through your tummy, gathering at the joining of your legs. You spread your legs and sprayed pussy juice onto the floor below you as your entire world dissolved into a hot, oozy mess centered on your now-ever-needy cunt.

As the world returned, you saw your boyfriend/husband across the bed, his hand stroking his cock. You knew that your face now had the same expression on it. It wasn’t a “sexy” look or a look meant to arouse. It was one of uncontrolled lust and satisfaction, terrifyingly reckless. But you didn’t care. You just knew you needed more. The creature was gone, the box closed. But you knew how to bring her back.

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Most of what I’m looking for is in the prompt. We’ll play the couple. Kinks center primarily on corruption, sexual insanity, and being out of control. Immediately giving in or trying to resist would both be fun. I would like all of our victims to initially be non-consenting initially, but become consenting as they’re corrupted into enthusiastic perverts. It would also be fun if our couple started to transform into demons as they did more and more terrible things.

Limits: Snuff, vore, and scat.